Flight price alerts: London → Sydney

Sample round trips on this route start around EUR 900; November 2026 is often the cheapest month in our next-3-month window. FlexTrip Alerts is a free email service — set flexible travel dates and a max price, and we notify you when a round trip fits. We check fares about four times per day; we do not sell tickets.

Set a free tracker with flexible dates and your max price. We email you only when a round trip fits.

Sample fares from EUR 900. Cheapest month in our next-3-month sample: November 2026.

Set an alert and we email you when a round trip drops under your limit.

Set a price alert

Round trips on this route

Cheapest-seen sample fares (next 3 months) — confirm the final price on the booking site when you click through.

Last updated .

  • Round trip · 8 nights
    Wed 11 Nov · 12:30
    Return Thu 19 Nov · 12:35

    EUR 900

    See deal
  • Round trip · 44 nights
    Tue 15 Dec · 17:20
    Return Thu 28 Jan · 10:30

    EUR 917

    See deal
  • Round trip · 7 nights
    Tue 01 Dec · 20:20
    Return Tue 08 Dec · 15:10

    EUR 951

    See deal
  • Round trip · 9 nights
    Tue 24 Nov · 10:30
    Return Thu 03 Dec · 12:00

    EUR 987

    See deal
  • Round trip · 24 nights
    Tue 01 Dec · 10:30
    Return Fri 25 Dec · 09:20

    EUR 993

    See deal
  • Round trip · 22 nights
    Thu 24 Dec · 13:15
    Return Fri 15 Jan · 10:30

    EUR 1020

    See deal
  • Round trip · 9 nights
    Mon 23 Nov · 10:30
    Return Wed 02 Dec · 12:00

    EUR 1052

    See deal
  • Round trip · 8 nights
    Tue 01 Dec · 20:20
    Return Wed 09 Dec · 15:10

    EUR 1096

    See deal
  • Round trip · 8 nights
    Mon 16 Nov · 22:35
    Return Tue 24 Nov · 21:00

    EUR 1099

    See deal
  • Round trip · 14 nights
    Tue 01 Dec · 10:30
    Return Tue 15 Dec · 12:00

    EUR 1155

    See deal
  • Round trip · 46 nights
    Sun 08 Nov · 17:15
    Return Thu 24 Dec · 15:10

    EUR 1177

    See deal
  • Round trip · 7 nights
    Fri 04 Dec · 10:30
    Return Fri 11 Dec · 11:10

    EUR 1181

    See deal
  • Round trip · 14 nights
    Mon 04 Jan · 10:30
    Return Mon 18 Jan · 12:00

    EUR 1215

    See deal
  • Round trip · 14 nights
    Tue 08 Dec · 14:55
    Return Tue 22 Dec · 16:50

    EUR 1221

    See deal
  • Round trip · 1 night
    Sat 28 Nov · 08:45
    Return Sun 29 Nov · 22:30

    EUR 1238

    See deal

Frequently asked questions

How do I get email alerts when London to Sydney flights drop in price?
Create a free FlexTrip Alerts tracker for London (All Airports) (LON) to Sydney Kingsford Smith Airport (SYD). Choose your flexible departure window, stay length, and maximum price — we email you when a round trip fits.
Does FlexTrip Alerts book flights from London to Sydney?
No — we do not sell tickets. FlexTrip Alerts watches prices and emails you when a fare matches your plan. You book on the airline or travel site you prefer when you receive an alert.
Can I set flexible travel dates for London to Sydney alerts?
Yes. Pick a departure window (not one fixed day) and how many nights you can stay. We match round trips that fit your window, stay length, and max price — then email you when one qualifies.
How often does FlexTrip Alerts check London to Sydney fares?
We scan aggregated fares on a schedule — about four times per day (every ~6 hours, UTC). You can also trigger an on-demand check from your dashboard, with a short cooldown between manual refreshes.
What is the cheapest month to fly from London to Sydney?
Based on recent fare samples on this page, November 2026 is currently the cheapest month to fly from London to Sydney, with round trips from about EUR 900. Prices change — set an alert to catch the next drop.

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